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Feb. 27, 1923. 1,446,687 E. M. BEA LS CALCULATGR DEVICE Filed May 28, 1921 2 sheets-sheet 1 Feb. 27. 1923.

E, M. BEALS CALCULATOR DEVICE 2 sheets-sheet. 2

' Filed May 28 IN NTOR.

Patented Feb. 27, 1923.

UNITED STATES PATENT OFFICE.

EUGENE M. BEALS, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO UNIVERSAL VISIBLE CALCULATOR COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPQ- RATION OF PENNSYLVANIA.

CALCULATOR DEVICE.

Application filed May 28, 1921.

To all whom it may concern:

Be it known that I, EUGENE M. 'BEALS, a citizen of the United States, residing at Pittsbur h, in the county of Allegheny and State of ennsylvania, have invented a new and useful Improvement in Calculator Devices, of which the following is a full, clear, and exact description.

My invention relates to a calculator de vice and is useful in any connection where it is desirable to have ready means of ascertaining the total or product of whole numbers or fractions.

An object of my invention is such a device which is simple in construction and easy to use.

Another object of my invention is such a device which is compact in form, at the same time having a large range.

A further object of my invention is such a device which is reversible so that both sides of the information cards together with both sides of the container may be used to get the desired results.

My invention will be better understood upon the reading of the following description taken in connection with the accompanying drawings showing one embodiment of my invention, and in which:

Figure 1 is a front elevation;

Fi re 2 is a section taken on the line II I of Figure 1;

Figure 3 is a section taken on the line IIIIII of Figure 1;

Figure 4 shows an enlarged detail view; and

Figure 5 shows one of the cards in place with one form of information thereon.

Referring to the drawings, the device comprises a stand or base 1 and a container 2. The container is secured to the base by a member 3 having flanges 4 and 5 thereon which pass upwardly around the container 2 and are fastened thereto by rivets 6. The member 3 is secured to the base 1 by a bolt 7 with a nut 8 thereon.

The container 2 comprises a boxlike member having an upper side 9 and a lower side 10, a front side 11, and rear side 12. The container 2 is provided with partitions 13., 14, 15, and 16, thus dividing the interior of. the container into compartments 17 In the Serial No. 473,258.

illustration shown, there are five of the compartments 17,'but it is to be understood that any numbenof compartments desired may be provided. Placed in the compartments 17 are cards 18 bearing suitable information. The compartments 1'? are laterally offset with respect to each other, so that a rectangular portion of the dividing walls is exposed at each end of the device, the rectangular portions extending in stepped relationship. These exposed portions of the partitions or dividing walls are recessed, as shown at 19. and an index is placed on the recessed portion. The index is of a thickness substantially equal to the recess, so that when the index member is applied the surface is substantially flush.

' The information cards 18 are placed in the compartments 17 and are of such size as to occupy the compartment without extending outwardly from either side. Each of the cards is provided with a tab 20 at each side, the width of the card being such that both tabs are visible when the card is in position in the compartment. The tabs20 have a pee- (-uliar shape so that when the card is in position the tabs rest against each side of the compartment, as shown in Figure 5, so as to prevent the card from sliding out of the container. I

The container 2 is rotatably mounted on the base 1 so that either side may be used and the container rotated to bring the other side into useable position.

The-base 1 is of such formation that the device normally stands at a slight angle to the vertical, as shown in Figure 2. the front of the device'being the side 11. This angular position of the container 2 renders the device more convenient for use.

The compartments 17 may be described as of substantially equal area and as laterally offset with respect to each other, thus giving the peculiar shaped container, as best'shown in Figure 3. I

In operation, referring to Figure 1, the index 25 bears an indication of the fractional part of the unit of time, suchas 1, g, and rate per unit of time, usually per hour. The card 18 bears the numerical indication of the rate per hour, such as .20, and the calculated values for each fraction or multiple of the time unit at that particular rate, so that when the card 18 is withdrawn 21 the om, l; to 25.;

L'- emndeet-ood, of course, t atthe ade .eamay e r-any ractions or multiples or n d unih and the cards. 18 having nfo. mat inforwcooperat on. with the index,

may 11.. x hanged to carry, the 1." lated totals for each of the units a at the desiredrate. Furthermore, the, range of f 'acie 0 mu tiples. otlhe un tmaa vary to. cover any desired; condltioni. dependl g upontheipa-rticular case for; which the calc le g ech m ybe extended by continuing init andrate on the index portion men; of the device; that .isrto. say,

lin' s; in

fl'lwtiona lIlflllQfllilQIlSilllflillfl hour indications oil-26am 150; the index 27, the-@same fractional indications and the hours o iil5li to l'lfiaal dso on, to, cover any desired, range. The. n-f inderresflfi and; "21 and; any others that may be desired, is printedorotherwise-placed on the reversesideot the cardsilfi; so that by: the particular;arrangement, of the compartments with respect to each other that-is to' say, by the; lateral. offsetting andistepped relation.

ship, the; information is not. only made visible, but bothsides ofthe cards and ofthe containerm-ay. be used without removing any, o l-the cards from their compartments,

it bfeing necessary in each case to do nothing,

moregthanslide thecardso as to bring it out sufficiently far to exhibit theralculated totals l the; particularvrate desired.

Any,- suitable information maybe placed at. thevtopuof-the index strips-to indicate themangecovered by that strip, such as for instance-thenumber ofhours or other units.

t ined: on hat st ip- Anysuitable information may also be and the portion 26-, indicated, in; dottedv F'gure 1, may be provided with,

rmat on; or: co peration With-. the.

metres"? placed on the tabs 20, such as the range covered by the card to which the tab is attached, as indicated forinstance in, Figure 5.

It may be mentioned also that each of the cards 18 is provided with a plurality of columns of figures each calculated at a different rate these-columns bei ngparallel to each other and occupyingsubstantially the space shown Ont11"cdii i' l8 inl igu-re l so that each cardlS may be provided with. calculated totals based on a plurality of rates each one of the. columns containing information for cooperation with the particular index ranging from 1 to. in device; such as that shown ig ure 1.

From for egoing, it will: be evident that Inyinv iii-ion has many advantages. oven any device heretofore known, in that, the cardsnsed may hear information onv both, sides; the container is. simple. iirconstruction; it is reversible; itisnot necessary to i remove the cards in order to use: both sides;

the. indexes are fixed; and the information on the indexes andpn the cards isq arranged vertically so that it is, readily observable, and the results or totals are apparent from; the cards and require no. mental, calculations Whateven While I have describedmy invention in detail and illustratedone particulars form of device embodying the same,l desire ityto, be understood that I a nnot to be limited. to the. particular detail form indicated, and described, as many detail changes be. made without departingirom the spirit of my invention,

I claim:

1. A, calculator device comprising-a container, having. a plurality of] compartments. laterally offset and in rearwardlyfl stepped relationwithrespect-to each other, substantially as described.

2. A calculator. device. comprising a .containerhavingaplurality of compartments laterally offset and in rearwardly. stepped relation with respect to. each other, and an index on said offset portion, substantially asdcscribed, i

3. A calculator device comprising a 6011.. tamer having a] plurality, of, overlapping partitions-ollsetlaterally and spacedito iorm compartmentslaterally oflset with respect to each other, an indexon the ofisetportions of said partitions, and,cardsiagaidcom p-arjtments having information :IEOI']: cooperation with said indexes, substantially, asdescribed..

4 A calculator: device comprising a. container having a plurality of, compartmentsotsubstantially equal length relativelyofl set; laterally and rearwaliClly, substantially; as described, v

5. Acalculator device comprising con; tainer having a plurality of. overlapping compa tm tsof substantially equal.v length-'- and width relatively ofl'set laterally at two opposite sides, and indicia-carrying members having dimensions substantially equal to the dimensions of said compartments whereby they may be normally concealed therein but are adapted to cooperate with the offset portions at either side, substantially as clescribed.

6. A calculator device comprisin a container having a plurality of over appin separate compartments of substantial y equal length relatively offset, and an index on each offset portion, substantially as described.

7. A calculator device: comprising a container having a plurality o overlapping, separate compartments of substantially equal length relatively ofl'set, an index on each ofiset portion, and cards in said compartments containing information for cooperation with said indexes, substantially as described.

8. A calculator device comprising a container having a front and rear face and a plurality of compartments of substantially equal length relatively ofiset laterall at two opposite sides and stepped rearwar ly relative to each face, an index on each ofl'set portion thereof constructed to form a recess,

and an index held in each of said recesses, substantially as described.

11. In a calculator, a plurality of partition members each having at least one edge portion thereof constructed to form a recess, an index held in each of said reseses, and means for holding said artitions in laterally offset and rearwardly spaced relationship, substantially as described.

In testimony whereof I have hereunto set my hand.

EUGENE M. BEALS. 

